Relevance Feedback and Query Expansion Local method: Relevance Feedback Relevance feedback Browse Search Prev Next Random BIKENG 测 m (144473,16458) 144457,252140) 144456,262857) 144456,2628603) (144457,252134)(144483,265154) 0.0 0 00 0.0 00 0.0 0.0 00 0.0 00 00 44824641464611014518,25193010480293440491)(144620060 00 00 00 00 0.0 00 00 0.0 00 0.0 00 00Relevance Feedback and Query Expansion Relevance Feedback Local Method: Relevance Feedback 11